Data recording system having unique end-of-recording and start-o

Details Data recording system having unique end-of-recording and start-o Data recording system having unique end-of-recording and start-o

1992-02-28

1995-01-24

Hajec, Donald

Dynamic magnetic information storage or retrieval

General processing of a digital signal

360 48, 360 49, 360 53, G11B 509, G11B 2010

Patent

active

053846680

ABSTRACT:
A helical type tape recording and reproducing system records blocks of user data of predetermined size by reformatting the user data blocks into physical blocks that are recorded on tape, with the physical blocks being recorded as double frames. Each double frame is recorded on a set of successive helical tracks, preferably 32 tracks. Each double frame has system format data interleaved with the user data block data which identifies the double frame as being of a particular type. The present invention is directed to the types of double frames that are used to begin a recording, particularly an append recording which involves recording by the system at a previously recorded tape which may have been recorded by a different system, as well as the types of double frame that are used to end a recording.

REFERENCES:
patent: Re31311 (1983-07-01), Miller
patent: 5029022 (1991-07-01), Odaka et al.
patent: 5057950 (1991-10-01), Ozaki et al.
IEEE Transactions On Consumer Electronics vol. 35, No. 3, Aug. 1989, New York US pp. 660-670, XP000065999 H. Goto et al. `A new concept of DATA/DAT system`.
Proposed SMPTE Standard for Television Digital Component and Composite Recording, SMPTE Journal, Mar. 1992.
John Watkinson, The D-2 Digital Video Recorder, 1990 pp. 143-183 (no month).

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